21470915

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{6827}}^1$

素因数の和:6886

約数の個数: 16

約数和(自身を含む): 28022112

約数和(自身を除く): 6551197

約数列:

[1, 5, 17, 37, 85, 185, 629, 3145, 6827, 34135, 116059, 252599, 580295, 1262995, 4294183, 21470915]

約数ペア:

[(1, 21470915), (5, 4294183), (17, 1262995), (37, 580295), (85, 252599), (185, 116059), (629, 34135), (3145, 6827)]